connecting three routers together

codimes

Prominent
Oct 31, 2017
2
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510
Somehow im trying to setup 3 routers at my location but the 3rd router doesnt have internet connection

Router 1
Internet IP address provided by your ISP
LAN IP address 192.168.1.1
DHCP 192.168.1.10-192.168.1.30

Router 2
Internet IP address 192.168.1.2 (connected to router 1 from WAN port)
LAN IP network 192.168.2.1
DHCP 192.168.2.100-192.168.2.254


Router 3
Internet IP address 192.168.1.3 (connected to router 2 from WAN port)
LAN IP network 192.168.3.1
DHCP 192.168.3.100-192.168.3.254]

now router 3 doesnt have internet connection
 
Solution
Ah. Ok, so do the router 1 to router 2 as I said but then run the LAN from router 2 to the WAN of router 3. Router 3 now becomes it's own network and you can do DHCP, firewall etc. You will want to change the DHCP on router 3 to be a different range (10.0.0.1 to 10.0.0.X for example) so users connected to router 3 can't get anywhere else. Then setup router 3 with different SSID and pw, however you want.
Don't use WAN ports on the router 2 and 3.

Connect your LAN cable from the modem into Router 1 WAN port.
Router 1 should connect to router 2 LAN to LAN and router 2 connects to router 3 LAN to LAN too.

There are guides out there that will show you how to setup router 2 and 3 as Wireless Access Points. That is how you want do this.
But essentially router 1 does the DHCP (so you can set the range for the to 254 if you want), router 2 and 3 have DHCP turned off. Firewall is turned off on 2 and 3 as well (they are redundant as router 1 presumably has an active firewall already)
Router 2 and 3 are setup with the same WiFi SSID and passwords. If they are relatively close together then you want to change the WiFi channel for each router (i.e 6, 1, 11 respectively).

Let us know if you need help finding a good guide. Also provide models of routers so we can find specific guides.
 
Any guide is very welcomed!

I have different clients on router 3 thats why i need to have DHCP activated. i want to restrict access to router 1 & router 2 from router 3!

im using ddwrt
 
Ah. Ok, so do the router 1 to router 2 as I said but then run the LAN from router 2 to the WAN of router 3. Router 3 now becomes it's own network and you can do DHCP, firewall etc. You will want to change the DHCP on router 3 to be a different range (10.0.0.1 to 10.0.0.X for example) so users connected to router 3 can't get anywhere else. Then setup router 3 with different SSID and pw, however you want.
 
Solution